From: Harry Kakueki <list.push@...>
Date: 2007-05-17T10:38:18+09:00
Subject: Re: Can't get subgroup of regex to repeat with +... what the ?

On 5/17/07, Jon <exabrial@gmail.com> wrote:
>
> Example Strings:
> =====
> A=" <orderMsg biz=0>"
> B=" <orderMsg type=7 size=0>"
> C=" <orderMsg type=7 size=0 biz=1>"
> =====
>
> I've come up with this regex:
> =====
> /<(\w+?)(?:\s(\w+)=(\w+))+>/
> =====
>
>
> But when matching string B from above:
> =====
> md=/<(\w+?)(?:\s(\w+)=(\w+))+>/.match(B)
> =====
>
>
> Why isn't the final + sign making the pattern "(?:\s(\w+)=(\w+))"
> repeat?
>
> As an exercise... /<(\w+?)(?:\s(\w+)=(\w+))(?:\s(\w+)=(\w+))>/ DOES
> match String B from above. What the heck???
>
> --
> Posted via http://www.ruby-forum.com/.
>
>
Hi,

Unless you really want to write one regular expression for it all, you
could do something like this.

Split on spaces, then on '=' . Then process however you want.

r = B.strip.split(/\s/)
p r
r[1..-1].each {|f| p f.split("=")}

Harry


-- 

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